JPS603911A - Device for setting roll position in vertical mill - Google Patents

Abstract

PURPOSE:To prevent the sideward deviation of a material by detecting the sideward deviation of material in a vertical mill and moving rolls parallelly to the advancing direction of material in accordance with the amount of deviation by a roll-position setting device of the mill. CONSTITUTION:The rolling of a material 16 in its width direction is performed by moving vertical rolls 1, 2 perpendicularly to the advancing direction of the material 16. The width correction in this rolling is performed by roll-position setting devices 12, 13. As against the devices 12, 13; when the material deviates sideward with respect to its advancing direction, a reference standard for changing the positions of the left and right rolls by a parallel-position instructor 9 in accordance with the difference between the loads of load meters 21, 22, is given to roll-position controlling devices 7, 8 by moving the 2nd roll-position setting devices 3, 4 parallelly to the advancing direction of material 16.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a roll position setting device for a vertical rolling mill.

[Technical background of the invention and its problems]

Vertical rolling mill equipment conventionally has a roll gap adjustment drive for setting the width of the vertical rolls.

However, the material is rolled diagonally and the material is not rolled evenly on the left and right sides due to the L straight rolling mill (binary type), the difference in the roll diameter of the vertical rolls on the left and right sides, and the difference in the peripheral speed of the vertical rolls on the left and right sides. On the exit side, skewing may worsen, and for this reason, it was necessary to make the side guides placed on the rolling exit side (= side guides) strong.

[Purpose of the invention]

The present invention has been made based on the above-mentioned circumstances, and an object of the present invention is to provide a roll position setting device for a vertical rolling mill to improve the worsening phenomenon of skewing of material in vertical rolling mill equipment.

[Summary of the invention]

Conventional vertical rolling mill equipment is usually equipped with a roll gap adjustment drive device that moves in a direction perpendicular to the material, but the present invention is capable of adjusting the roll gap adjustment drive device that moves in the direction perpendicular to the material. By providing a driving device and an automatic correction device (2), it is possible to control the rolling of the material, which was not possible with conventional vertical rolling equipment C2.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

The drawings show the configuration of the present invention using a block diagram. In FIG. 1, the vertical rolls 1 and 2 are installed on a vertical stand (-- for rolling the material 16. The vertical rolls 1 and 2 have first roll positioning devices 12 and 13 which can be moved in the direction perpendicular to the material. are set in the vertical direction by the respective drives 10 and 11.

Also, the exit side of the vertical rolling mill (the second is side guides 17 and 18
The width is set by the drive devices 19 and 20 according to the width of each rolling month. The above configuration was also provided in the conventional configuration of one or more vertical rolling stands.

A characteristic feature of the present invention is that it includes a second pair of roll position setting devices 3 and 4 that can move in parallel to the direction of movement of the monthly profit 16.

These roll positioning devices 3, 4 are connected to drives 5 and 6, respectively, which position the rolls in a direction parallel to the material. The drives and 6 may be drive electric motors or hydraulic devices. In order to control the position of the position setting device 3.4, the roll position control devices 7 and 8 give operation commands to the drive devices 5 and 6.
ifi with the parallel position command device 9, the roll position control device 7
and 8. The second roll position setting devices 3 and 4 have roll position detectors 14 and 15, respectively, to detect the roll position and send a feedback signal of position to the roll position control devices 7 and 8. It forms a closed circuit for the position control system.

The parallel position command device 9 has exit side guides 17 and 18.
The deviations of the outputs of the loads picked up (total 21 and 22) are input.

Next, the effects of the present invention will be described in two parts.

The vertical rolls 1 and 2 of the present invention move perpendicularly to the traveling direction of the rice grains to roll the material in the width direction.

This intermediate adjustment is performed by roll position setting devices 12,13. On the other hand, the second roll position setting device 3.4 moves parallel to the direction of movement of the material (2) when the material is skewed in the direction of movement (1) load cells 21 and 22;
The parallel position command device 9 provides a standard for changing the left and right roll positions according to the difference between the roll position control g11+devices 7 and 8 (-).

For example, when turning to the left, the load meter 21 (=load P is detected, base Q, quantity 1=KP (K=constant) is determined, and the vertical roll changes the progress of each rolling phase to the right). To move the vertical roll 2 forward with respect to the rolling progress and backward with respect to the rolling progress.

Similarly, when turning to the right, the load meter 22 (= load P is detected and the reference (K at -11)) (K = constant) is determined, and the vertical roll 1 is rolled so as to change the progress of the rolled material q to the left; To the rear of the business, the vertical rolls are rolled, 2 to the front of the rolling jfS, giving hyperactivity.

According to this rule (51), the amount of roll movement is determined by comparing it with the feedback signals of the roll position setting devices 7 and 8 (knee) roll position detectors 14 and 15, and!
The roll position setting devices 3 and 4 are driven by the Ig1 drive devices and 6.

〔Effect of the invention〕

As described above, according to the present invention, the skew of the vertical rolling mill is detected, and the a-outside position setting device of the vertical rolling mill moves the rolls parallel to the direction of movement of the material according to the skew q. This prevents the material from collapsing and prevents excessive force from being applied to the exit side guide.

[Brief explanation of the drawing]

The drawing shows a block diagram of the j-external position setting device of the vertical rolling mill of the present invention. 1.2...Vertical roll 3.4...Second roll position setting device 5.6...1
Drive device 7.8...roll position side m11 device η9...flat 1j
Position command device 10.11...j Drive device 12.13...First roll position setting device 14.1.
5...Roll position detector 16...Rolling 4A needle [17, 18...Side guide 19.20...Drive device 21, 22...Load cell

Claims (1)

[Claims] A vertical rolling mill that has a first roll position setting device that changes the roll position of the vertical mill that rolls down the width of the material and a first roll position setting device that changes the roll position of the vertical mill in the vertical direction Correct the skew of the material by changing it parallel to @
The present invention is characterized by having a roll position setting device 2, a detection device that detects when skewing of the material occurs, and a parallel command device that gives a command to correct it according to the amount of skew. Roll position setting device for vertical rolling mill.